4X4矩阵键盘的驱动，编程环境位KEIL。

基于单片机控制的电子密码锁 摘要：本系统由单片机系统、矩阵键盘、LED显示和报警系统组成。系统能完成开锁、超时报警、超次锁定、管理员解密、修改用户密码基本的密码锁的功能。除上述基本的密码锁功能外，还具有调电存储、声光提示等功能，依据实际的情况还可以添加遥控功 -Based on MCU-controlled electronic code locks Abstract: This system consists of single-chip microcomputer system, matrix keyboard, LED display and alarm system. System to complete the unlock, overtime alarm, lock超次, administrators decrypt, modify the user s password locks the basic functions. In addition to the above basic code lock function, but also has a transfer electric storage, sound and light features such as tips, according to the actual situation can also add a remote control reactive

贪吃蛇游戏下载,-Snake game downloads, s

功率放大器功能的程序，包括汇编原代码，可烧录文件，熟悉音乐播放的方法-Power amplifier function procedures, including the compilation of the original code, recordable documents, familiar with the music player, the method

数字钟的verilog程序，很经典，大家可以看看。-Verilog digital clock procedures, it is a classic, we will look at.

Atmel提供的GAL编译工具,对GAL芯片进行编写,以及可转换成机器码-the GAL compiler tool to prepare for GAL chip, and can be converted into machine code

电子钟的单片机实现,这里配合时钟芯片令时间更加准确,LCD界面更加人性化-Realize the single-chip electronic bell, where the time clock chip with a more accurate, LCD interface more user-friendly

RS232中断通信-RS232 communication disruption

C8051 rtl的汇编驱动程序，如果能看懂会给你带来很大的好处，学习的好资料.-The driver of C8051 rtl, it will bring you very big benfit if you will read it, it is very nice.

计算操作程序，并提供了VB源代码-calculation procedures, and provide the source code in VB

在网上找了好长时间DS12887的汇编程序，发现这方面的资料太少，所以现在将这个DS12887时钟芯片的汇编程序发出来，以供大家参考。-DS12887